MRB-20 type fishing boat
design 921M


Purpose of the vessel:     - drift net fishing
Length OA (m) 12.65
Length BP (m) 11.32
Breadth extreme (m) 3.07
Molded breadth (m) 3.00
Depth to upper deck (m) 1.40
Load draught, average (m) 0.95
Displacement (tonnes) 9.07
Deadweight (tonnes) -
Gross tonnage / Net tonnage (register tons)
- / -
Carrying capacity (tonnes) 3.0
Main engines:

    - Main engine number, power (Bhp each)
1*20 (1*40)
    - Main engine model
2ChSP 10.5/13 (4ChSP 10.5/13)
    - Speed of rotation (r.p.m.)
Shaft generators:
    - Shaft generator model
G-21 (GSK-1500M)
    - Shaft generators number, power (kW each)
1*0.225 (1*1.0)
    - Speed of rotation (r.p.m.)
    - Rated voltage (V)
    - Current type DC
Auxiliary diesel generators:

    - Diesel engine number, power (Bhp each)
    - Speed of rotation (r.p.m.)
    - Engine model
    - Generators number, power (kW each)
    - Generator model
    - Rated voltage (V)
    - Current type n/a
Emergency batteries:

    - Storage batteries number and capacity (Ah each) -
Dry cargo holds number, total cubic capacity (cub. m) 1*4.8
Derricks number, lifting capacity (tonnes) -
Diesel oil tanks (cub. m) -
Heavy fuel oil tanks (cub. m) -
Fresh water tanks (cub. m)
Speed (kn) 6.5
Crew (persons) 2
Number of units ?
Year of beginning of construction of vessels of this type ?
Year of the end of construction of vessels of this type ?
Built by Petrozavodsk shipyard, Petrozavodsk, USSR
        - During construction of a series of vessels of one type, in their design some changes can be made and the above-stated characteristics can be changed insignificantly.
        - The above-stated characteristics, in most cases, belong to the first vessel in class (source - Commercial fishing gears of Siberia and Ural. Vilner R. E., 1972). Other possible versions of the corresponding characteristic can be specified in brackets.

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